5fb2f37fa95286d13ba7f6e3803ee09dc25cbeb50a56c4c7a1e34263b054176b

Analysis

max time kernel
121s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
30/05/2023, 09:58

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General

Target

Fw DocuSign Payment is ready.msg
Size

587KB
MD5

8b86daa993ea60992086ce6940050ce8
SHA1

d5dcb600b91314a10be3794824007be3b91b1e72
SHA256

5fb2f37fa95286d13ba7f6e3803ee09dc25cbeb50a56c4c7a1e34263b054176b
SHA512

98fb97a506e8d8c75c65409cf9ac8a404a56f7225372d33c89d1ee1893346ae9aa0c2e72b366d9b33e30d53a6cb5683e1459f198b44dc153d8850744631699f6
SSDEEP

12288:HMCjkvXosnAvNQz1Ak0gaoe4PZlgjWTy3dm:nIUNQPPTgh

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 14 IoCs

description	ioc	Process
File created	C:\Windows\system32\perfc007.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc009.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc00A.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh011.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh00C.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc010.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh010.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc011.dat	OUTLOOK.EXE
File created	C:\Windows\SysWOW64\PerfStringBackup.TMP	OUTLOOK.EXE
File created	C:\Windows\system32\perfh007.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfh00A.dat	OUTLOOK.EXE
File created	C:\Windows\system32\perfc00C.dat	OUTLOOK.EXE
File opened for modification	C:\Windows\SysWOW64\PerfStringBackup.INI	OUTLOOK.EXE
File created	C:\Windows\system32\perfh009.dat	OUTLOOK.EXE

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\inf\Outlook\outlperf.h	OUTLOOK.EXE
File opened for modification	C:\Windows\inf\Outlook\outlperf.h	OUTLOOK.EXE
File created	C:\Windows\inf\Outlook\0009\outlperf.ini	OUTLOOK.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\MenuExt	OUTLOOK.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	OUTLOOK.EXE
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	OUTLOOK.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	OUTLOOK.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	OUTLOOK.EXE
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\Toolbar	OUTLOOK.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	OUTLOOK.EXE
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	OUTLOOK.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	OUTLOOK.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1728	OUTLOOK.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1728	OUTLOOK.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1728	OUTLOOK.EXE

C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE" /f "C:\Users\Admin\AppData\Local\Temp\Fw DocuSign Payment is ready.msg"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1728

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\FORMS\FRMCACHE.DAT

Filesize
248KB

MD5
e0b0f27234e3502b0858f91a0eb1fab3

SHA1
56ac4f7dd64c39704be39b862babd7310fa58a6d

SHA256
fcec8c368d27461cdb870319ce5d245cecab3d3d8c33878ad91a93e1ab538336

SHA512
9abd8e90ff3f183610b87e85262076621afd44221f2d220f959168dc277d7b3dcfc5e56dbe9df15cb67f342055c161b4ae31fef671594f69a6d2a7bbe5054322

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Outlook\mapisvc.inf

Filesize
1KB

MD5
48dd6cae43ce26b992c35799fcd76898

SHA1
8e600544df0250da7d634599ce6ee50da11c0355

SHA256
7bfe1f3691e2b4fb4d61fbf5e9f7782fbe49da1342dbd32201c2cc8e540dbd1a

SHA512
c1b9322c900f5be0ad166ddcfec9146918fb2589a17607d61490fd816602123f3af310a3e6d98a37d16000d4acbbcd599236f03c3c7f9376aeba7a489b329f31

Download Submit
memory/1728-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

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